Z8F1680SH020SG Datasheet, PDF (291/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
266
Reset
Lock State 0
Write Page
Select Register
Write FCTL
No
73H
Yes
Lock State 1
Write FCTL
Writes to Page Select
Register in Lock State 1
result in a return to
Lock State 0
No
8CH
Yes
Write Page
Select Register
No _{Page Select}
values match?
Yes
Yes Page in
Protected Sector?
No
Page
Unlocked
Program/Erase
Enabled
Byte Program
Write FCTL
Yes
95H
Page Erase
No
PS025015-1212
Figure 54. Flowchart: Flash Controller Operation
PRELIMINARY
Flash Memory